On Thu, Apr 23, 2020 at 06:31:12PM +0200, Jeremie Courreges-Anglas wrote: > On Thu, Apr 23 2020, Jason McIntyre <j...@kerhand.co.uk> wrote: > > On Thu, Apr 23, 2020 at 05:17:08PM +0200, Solene Rapenne wrote: > >> Is there a reason to keep this part in resolv.conf(5) about an option > >> doing nothing? > >> > >> > options inet6 > >> > Enables support for IPv6-only applications, by setting RES_USE_INET6 > >> > in _res.options (see res_init(3)). On OpenBSD this option does > >> > nothing. > >> > >> If we can remove it, here is the diff. > >> > > > > hi. > > > > i guess if you did this, you'd need to look at res_init.3 too. > > "options inet6" in resolv.conf(5) does bothing, it doesn't "set > RES_USE_INET6 in _res.options". I think we can just delete any mention > of "options inet6" in resolv.conf(5). > > RES_USE_INET6 as documented in res_init(3) should be investigated some > more. It actually does *something* in the current code, but it > doesn't enable the IPv4-mapped IPv6 addresses which we don't support. > > Maybe this option should just be deleted (probably safer to wait after > 6.7 is released). People should use getaddrinfo(3) instead. >
resolv.conf and res_init is used on many other operating systems. It is defacto a standard file and so it makes sense to document options that may exist on other system. -- :wq Claudio
